nju7660 a - 1 - ver.2013-05-15 voltage converter general description ? package outline NJU7660A is a cmos switched capacitor, voltage converter designed to be an improved direct replacement of popular 7660/1044. NJU7660A provides several voltage conversion functions. the application circuit of negative voltage(v out =-v in ) converter requires only two capacitors, and positive twofold voltage(v out =2v in ) converter requires two capacitors and two diode as external components. features full compatible with nju7660 correspond to mlcc and electrolytic capacitor twofold positive output polarity-converted negative voltage output operating voltage range :+1.5v to +10v(for negative voltage converter) :+3.0v to +10v(for twofold voltage converter) high-efficiency voltage conversion rate :99.9%(no load, negative voltage converter) few external components :2 capacitors(negative voltage converter) :2 capacitors, 2diode(twofold voltage converter) package outline :dmp8, ssop8 cmos technology pin configuration pin function 1. n.c. :non connection 2. c + :charge pump capacitor(+) connecting pin 3. gnd :ground pin 4. c - :charge pump capacitor(-) connecting pin 5. v out :voltage output pin 6. v r :voltage regulator control pin 7. osc :oscillation capacitor connecting pin 8. v + :power supply pin product classification device name oscillation frequency output resistance operating current c1/c2 capacitor status NJU7660A 5khz typ. 55 ? typ. 40 a typ. 10 f m.p nju7660b 200khz typ. 30 ? typ. 800 a typ. 1 f plan 1 8 2 7 3 6 4 5 NJU7660Am NJU7660Av NJU7660Am NJU7660Av http://www..net/ datasheet pdf - http://www..net/
NJU7660A - 2 - ver.2013-05-15 block diagram osc v r gnd v c c v out q 1 q 2 q 3 q 4 ? 2 power source oscillator voltage level converter logic circuit absolute maximum ratings (ta=25 c) parameter synbol ratings unit supply voltage v + 10.5 v osc pin voltage v osc -0.3 ~ (v + +0.3) @ v + < 5.5 (v + -5.5) ~ (v + +0.3) @ v + > 5.5 v v r pin voltage v vr -0.3 ~ (v + +0.3) @ v + < 5.5 (v + -5.5) ~ (v + +0.3) @ v + > 5.5 v v r pin current (*3) i vr 20 a output short continuity @ v + < 5.5 dmp8 470(*1) 600(*2) power dissipation p d ssop8 410(*1) 510(*2) mw junction temperature range tj - 40 ~ +150 c operating temperature range topr - 40 ~ + 85 c storage temperature range tstg - 40 ~ +150 c (*1): mounted on glass epoxy board. (76.2 114.3 1.6mm:based on eia/jdec standard, 2layers) (*2): mounted on glass epoxy board. (76.2 114.3 1.6mm:based on eia/jdec standard, 4layers,internal cu area: 74.2 74.2mm) (*3): connecting any input terminal to voltages greater than v+ or less than gnd may cause destructive latchup. it is recommend ed that no inputs from sources operating from external supplies be applied prior to ?power-up? of the NJU7660A input voltage range v + =1.5v to 10v (for negative voltage converter) v + =3.0v to 10v (for twofold voltage converter) http://www..net/ datasheet pdf - http://www..net/
nju7660 a - 3 - ver.2013-05-15 electrical characteristics (unless otherwise noted, v + =5.0v, c osc =0, ta=25 c parameter symbol test condi tion min. typ. max. unit operating current i + r l = - 40 130 a v + h1 v r =open 3.0 - 6.5 v operating voltage 1 (without dx) v + l1 r l =10k ? v r =gnd 1.5 - 3.5 v v + h2 v r =open 3.0 - 10 v operating voltage 2 (with dx) v + l2 r l =10k ? v r =gnd 1.5 - 3.5 v i out =20ma - 55 100 ? output resistance ro v + =2v, i out =3ma, v r =gnd - - 300 ? oscillation frequency fo - 5 - khz power conversion rate p ef r l =5k ? 90 98 - % voltage conversion rate v ef r l = 97 99.9 - % v + =2v - 1.0 - oscillation circuit impedance zosc v + =5v - 0.1 - m ? (*4): the twofold voltage converter operates over 3.0v http://www..net/ datasheet pdf - http://www..net/
NJU7660A - 4 - ver.2013-05-15 power dissipation vs. ambient temperature NJU7660Am y pow erdissipation (topr=-40~+85c,tj=150c) 0 200 400 600 800 -50 -25 0 25 50 75 100 125 150 temperature : ta(c) power dissipation p d (mw) on 4 layers board on 2 layers board NJU7660Av y powerdissipation (topr=-40~+85c,tj=150c) 0 200 400 600 800 -50 -25 0 25 50 75 100 125 150 temperature : ta(c) power dissipation p d (mw) on 4 layers board on 2 layers board http://www..net/ datasheet pdf - http://www..net/
nju7660 a - 5 - ver.2013-05-15 test circuit typical application 1-1 negative voltage output 1 1-2 negative voltage output 2 1.5v to 3.5v operation 3.5v to 10v operation gnd n.c c + c - v r v + osc v out + - v in =1.5v~3.5v - + v out =-v in 10 f NJU7660A 1 0 f 3 2 1 4 8 7 6 5 *it can use ceramic condenser too. gnd n.c c + c - v r v + osc v out + - v in =3.5v~10.0v - + v out =-v in 10 f NJU7660A 10 f ( ) 1 2 3 4 8 7 6 5 *it can use ceramic condenser too. (*6): v r pin must connect to gnd or open acco rding to the operating voltage as follows: v + < 3.5v :connected to gnd v + 3.5v :open (*7): in case of the operation voltage is 6.5v or more, a diode must be connected to v out pin. if it is less than 6.5v, the diode is not required 2 twofold positive voltage output gnd n.c c + c - v r v + osc v out v out =2v in -2v f NJU7660A 10 f + - 10 f v in 1 3.0v ? 10v d 1 1 2 3 4 8 7 6 5 d 2 *it can use ceramic condenser too. v f : forward voltage of diodes NJU7660A nc v c1 10 f (*5):in case of the operation voltage is 6.5v or more, a diode must be connected to v out pin. if it is less than 6.5v, the diode is not required c + gnd c - v out osc v r c2 10 f (*5) c osc r l v in =1.5v~10v v out = -v in the measurement circuit diagram of negative voltage i s shown bellow. v r pin must connect to gnd or open according to the operating voltage as follows: v + < 3.5v :connected to gnd v + 3.5v :open the oscillation frequency can be lowered by connected external capacitor to the osc pin, furthermore it can b e also driven by external clock generator. http://www..net/ datasheet pdf - http://www..net/
NJU7660A - 6 - ver.2013-05-15 3 cascade connection (negative voltage output) gnd n.c c + c - v r v + osc v out + - v in - + v out 10 f NJU7660A 10 f gnd n.c c + c - v r v + osc v ou t + - - + 10 f NJU7660A 10 f ? ? ? v out = -n v in ? v out = -(2n-1) v in (1) (n) ( ) ( ) 2 1 2 3 4 8 7 6 5 1 3 4 8 7 6 5 *it can use ceramic condenser too. *it can use ceramic condenser too. (*8): v r pin must connect to gnd or open according to the operating voltage as follows: v + < 3.5v :connected to gnd v + 3.5v :open (*9): in case of the operation voltage is 6. 5v or more, a diode must be connected to v out pin. if it is less than 6.5v, the diode is not required (*10): in case of the cascade connection (negative voltage output), v r pins (after second ic?s) must connect as follows, according to v + - gnd voltage. v + - gnd < 3.5v :connected to gnd v + - gnd 3.5v :open (*11): output resistance becomes total of the ro of every NJU7660A http://www..net/ datasheet pdf - http://www..net/
nju7660 a - 7 - ver.2013-05-15 tyipical characetristics (common) NJU7660A operating current vs.operating voltage 0 50 100 150 200 250 345678910 operating volatge:v + (v) operating current:i + (a) @ta=25c r l = NJU7660A operating current vs.temperature 0 50 100 150 200 250 -50 -25 0 25 50 75 100 125 150 temperature:ta(oc) operating current:i + (a) v+=3.5v v+=5.0v v+=10.0v @r l = NJU7660A output resistance vs.operating voltage 0 20 40 60 80 100 120 140 160 180 200 34567 operating voltage:v + (v) output resistance:ro(ohm) @ta=25c i out =20ma v r =open NJU7660A output resistanse vs.temperature 0 20 40 60 80 100 120 140 160 180 200 -50 -25 0 25 50 75 100 125 150 temperature:ta(oc) output resistanse:ro(ohm) v+=3.5v v+=5.0v v+=6.5v @i out =20ma v r =open NJU7660A oscillation frequency vs.external capacitor 0.001 0.01 0.1 1 10 100 1 10 100 1000 10000 external capacitor:c(pf) oscillation frequency:fo(khz) @ta=25c v + =5.0v http://www..net/ datasheet pdf - http://www..net/
NJU7660A - 8 - ver.2013-05-15 tyipical characetristics (negative circuit) NJU7660A power conversion rate/operating current vs.output current 0 10 20 30 40 50 60 70 80 90 100 0 1020304050 output current:i out (ma) 0 10 20 30 40 50 60 70 80 90 100 operating current:i + (ma) power conversion rate operating current ? ta=25c v + =5.0v negative circuit power conversion rate:p ef (%) NJU7660A output volatge vs.operating voltage -10 -8 -6 -4 -2 0 2 345678910 operating voltage:v + (v) output volatge:v out (v) @ta=25c i out =20ma negative circuit NJU7660A voltage conversion rate vs.operating voltage 80 85 90 95 100 34567 operating voltage:v + (v) voltage conversion rate:v ef (%) @ta=25c r l = negative circuit NJU7660A output voltage vs.output current -7 -6 -5 -4 -3 -2 -1 0 1 2 0 1020304050 output current:i out (ma) output voltage:v out (v) @ta=25c v + =5.0v negative circuit NJU7660A power conversion rate vs.temperature 90 91 92 93 94 95 96 97 98 99 100 -50 -25 0 25 50 75 100 125 150 temperature:ta(oc) power conversion rate:p ef (%) v+=3.5v v+=5.0v v+=6.5v @i out =2ma negative circuit NJU7660A output voltage vs.temperature -7 -6 -5 -4 -3 -2 -1 0 1 2 -50 -25 0 25 50 75 100 125 150 temperature:ta(oc) output voltage:v out (v) v+=3.5v v+=5.0v v+=6.5v @i out =20ma negative circuit http://www..net/ datasheet pdf - http://www..net/
nju7660 a - 9 - ver.2013-05-15 tyipical characetristics (twofold circuit) NJU7660A power conversion rate/operating current vs.output current 0 10 20 30 40 50 60 70 80 90 100 0 1020304050 output current:i out (ma) 0 10 20 30 40 50 60 70 80 90 100 operating current:i + (ma) power conversion rate operating current power conversion rate:p ef (%) ? ta=25c v + =5.0v twofold circuit NJU7660A output voltage vs.operating voltage 0 2 4 6 8 10 12 14 16 18 20 345678910 operating voltage:v + (v) output voltage:v out (v) @ta=25c i out =20ma twofold cirsuit NJU7660A voltage conversion rate vs.operating voltage 80 85 90 95 100 345678910 operating voltage:v + (v) voltage conversion rate:v ef (%) @ta=25c r l = twofold cirsuit NJU7660A output voltage vs.output current 0 2 4 6 8 10 12 14 16 18 20 0 1020304050 output current:i out (ma) output voltage:v out (v) @ta=25c v + =5.0v twofold circuit NJU7660A power conversion rate vs.temperature 60 65 70 75 80 85 90 95 100 -50 -25 0 25 50 75 100 125 150 temperature:ta(oc) power conversion rate:p ef (%) v+=3.5v v+=5.0v v+=10.0v @i out =2ma twofold cirsuit NJU7660A output voltage vs.temperature 0 2 4 6 8 10 12 14 16 18 20 -50 -25 0 25 50 75 100 125 150 temperature:ta(oc) output voltage:v out (v) v+=3.5v v+=5.0v v+=10.0v @i out =20ma twofold cirsuit http://www..net/ datasheet pdf - http://www..net/
NJU7660A - 10 - ver.2013-05-15 [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. http://www..net/ datasheet pdf - http://www..net/
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